Re: [archer-keiths-expr-cumulative] Symbol scope resolving error

[Sami Wagiaalla <swagiaal at redhat dot com>]

Hi Jan,

This should be fixed by:

f95071be91b43bb9b86137d058a3e0482c75abdb

Test are here:

8b84e7646a4477255feeb532cb52512ed0945e83
937e9fbc48c56b61efa7a85cc478b13f0d042110
e8b9d38e528f9686912cb938de49f70824af9fe5

Sorry for the late reply, but after rolling back the first version of
this patch, I ran into a lot of issues with it.

Maybe this can go into an update. Let me know what you think.

Thanks,
  Sami

Jan Kratochvil wrote:
> Hi,
>
> while DWARF from current HEAD or Fedora GCCs is broken:
>   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39524
>
> fixed GCC IMO provides correct DWARF but GDB from
> archer-keiths-expr-cumulative (tested
> 35ca449e9f1a4cd477df644f717bbe4e3362c486) still does not resolve it correctly
> (see below).
>
> Tested GDB with GCC patched by the fix
>   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39524#c1
> scratch-built as:
>   http://koji.fedoraproject.org/scratch/jkratoch/task_1253951/
>
>
> Thanks for the fix,
> Jan
>
>
> # gdb -q ./outer
> (gdb) l 1
> 1       #include <stdlib.h>
> 2
> 3       namespace A
> 4         {
> 5           static int var = 2;
> 6         }
> 7
> 8       int
> 9       main (void)
> 10      {
> 11        int var = 1;
> 12      
> 13        if (var != 1)         /* var-is-1 */
> 14          abort ();
> 15      
> 16        {
> 17          using A::var;
> 18      
> 19          if (var != 2)       /* var-is-2 */
> 20            abort ();
> 21        }
> 22      
> 23        return 0;             /* break-here */
> 24      }
> (gdb) b 13
> Breakpoint 1 at 0x4005a7: file outer.C, line 13.
> (gdb) r
> Starting program: /tmp/outer 
>
> Breakpoint 1, main () at outer.C:13
> 13        if (var != 1)         /* var-is-1 */
> (gdb) p var
> $1 = 1
> (gdb) adv 19
> main () at outer.C:19
> 19          if (var != 2)       /* var-is-2 */
> (gdb) p var
> $2 = 1
> ^^^^^^ Wrong GDB evaluation.
> (gdb) adv 23
> main () at outer.C:23
> 23        return 0;             /* break-here */
> (gdb) q